CVE-2019-19900 Cross-site scripting in n/a
An attacker with content type administration privileges can inject scripts via content type names, leading to XSS when editors create content.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-19900?
CVE-2019-19900 is a medium-severity cross-site scripting vulnerability in n/a, published on 19 Dec 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
An issue was discovered in Backdrop CMS 1.13.x before 1.13.5 and 1.14.x before 1.14.2. It doesn't sufficiently filter output when displaying content type names in the content creation interface. An attacker could potentially craft a specialized content type name, then have an editor execute scripting when creating content, aka XSS. This vulnerability is mitigated by the fact that an attacker must have a role with the "Administer content types" permission.
Weakness: CWE-79
Which versions are affected by CVE-2019-19900?
It affects 1 product.
Products include Backdropcms Backdrop Cms.
How do I fix CVE-2019-19900?
No fix has been published for CVE-2019-19900 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2019-19900 being exploited?
There is no known exploitation of CVE-2019-19900 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-mrg6-qrwx-6268.